Screed support



My 18, 1943 5. J. WEARN SCREED SUPPORT Filed Aug. 28, 1942 INVENTOR."

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Patented May 18, 1943 UNITED STATES PATENT OFFICE 2,319,526 SCREEDsUProa'r Stanley J. Wearn, Los Angeles, Calif.

Application August 28, 1942, Serial No. 456,466

6 Claims. (01. 72-128) The present invention relates to supports and hasparticular reference to a device for supporting screeds, such as used insurfacing concrete floors and roadways.

It is the general object of the invention to provide a simple,convenient and inexpensive device for supporting screeds or the like. Itis an important object to provide a support on which a screed may belaid and which will maintain the screed firmly in position. Anotherobject is to provide improved means for adjusting the device verticallyand for maintaining it firmly in vertically adjusted position. A furtherobject is the provision of improved construction of the device, wherebyseating of the support in the ground is greatly facilitated.

These and other objects of the invention, as well as the manyadvantageous features thereof, will be readily appreciated upon perusalof the following detailed description and reference is invited to theaccompanying drawing, in which preferred forms of my invention areillustrated.

In the drawing:

Fig. 1 is a side elevational view illustrating the device of theinvention in its simplest form;

Fig. 2 is a substantially corresponding plan view of the device;

Figs. 3 and 4 show a modified form of the device in which the parts aredesigned and arranged to facilitate driving of the device into theground; and Figs. 5 and 6 illustrate further modifications in means foradjusting the height of the support.

The device of Fig. 1 comprises a stake I, which terminates at the top ina grooved head, or saddle 2, of a shape to receive a screed in the formof a cylindrical rod or pipe A. A plate 3 is centrally perforated toslide on the stake l, and it is fitted with a set screw 4. It isimportant to note that, because the saddle is substantiallysemicircular, the upper half of the screed is entirely unobstructed.

In practice a series of supports are seated in the ground by driving thestake of each support down far enough to place the saddle at the properheight, whereupon the plate is firmly pressed against the ground surfaceand there locked in position by means of the set screw 4 to maintain thedevice securely in position. The screed is preferably a long piece ofstraight rod or pipe, which may be pushed along axially in the supportsas the concrete surfacing progresses.

This method offers a distinct advantage over the conventional manner ofclamping the screeds in position in extended series, in that no jointsbetween abutting screed ends are present to form breaks in thecontinuity of the finished surface. Also, as the screed gradually isadvanced along and beyond the supports, it is possible to withdraw thelatter successively to be again seated in advance of the axiallyslidable screed. In this manner, it is possible to continue floor androad surfacing indefinitely with a pair of screeds and a few supportsalong each side edge of the surface to be finished.

Ordinarily, the device of Fig. 1 functions satisfactorily. Should it,however, be found difficult to seat the support in the ground to theproper height, it may be found advantageous to embody means for fineradjustment of the support after seating. This may be accomplished, asindicated in Figs. 3 and 41, by detachably fitting a saddle 6 on a plainstake l for axial adjustment thereon. The saddle may then be locked inposition in any suitable manner, as by'means of a set screw 8.

One advantage of this construction is that the seating of the device isfacilitated by driving the stake into the ground to approximately theproper height and then adjusting the saddle thereon until the correctheight is obtained. Another advantage in the use of this form of deviceis that no danger is present of damaging the saddle when it is foundnecessary to employ a hammer or sledge to seat the stake. Should it befound that danger is present of hammer blows upsetting the upper end ofa soft metal stake, it is a simple matter to seat a cap 9 on the endthereof during this operation, substantially as indicated in Fig. 4.

While screw threads are generally objectionable in devices of thecharacter herein described, it may at times be found advantageous toemploy such screw threads for the purpose of adjustment. To this end,the stake ID of Fig. 5 is shown threaded to engage screw threads of theplate II. The latter is, after the stake has been correctly seated inthe ground, rotated on the stake until it rests firmly on the groundsurface. No set screw is in this case required.

A similar result may be obtained, substantially as indicated in Fig. 6,by fitting the detachable saddle [5 on screwthreads at the upper end ofthe stem l6.

While I have described preferred forms of the invention it will, ofcourse, be understood that other modifications may be embodied withinthe scope of the claims hereto appended, without departing from thespirit of the invention. Where the screed support is to be seated inwooden on the end of said stake for axial adjustment thereon, aground-engaging plate axially adjustable on the stake, and means forlocking said plate in position on the stake.

3. A support for a cylindrical screed comprising, a stake terminating atthe top in a head shaped to receive said screed, and a ground-engagingmember axially adjustable on said stake.

4. A support for a cylindrical screed comprising, a stake terminating atthe top in a head shaped to receive and firmly to hold said screed, aground-engaging member axially adjustable on said stake, and means forlocking said memher in adjusted position on the stake.

5. A support for a cylindrical screed comprising, a stake, a saddleshaped to receive said screed and having a pendant socket fitted toencompass and axially adjustable on said stake, and a ground-engagingmember axially adjustable on the stake.

6. A support for a cylindrical screed comprising, a stake threaded atthe top, a saddle shaped to receive and firmly to hold said screed, saidsaddle having internal screw threads seatable on the end threads of thestake, and a groundengaging member axially adjustable on the stake.

STANLEY J. WEARN.

